Chemistry

原子, 基本粒子

The atom is composed of a nucleus containing protons and neutrons, surrounded by electrons.

原子由包含质子和中子的原子核组成，周围环绕着电子。

分子

Molecules are made up of two or more atoms bonded together.

分子由两个或更多原子结合在一起组成。

元素, 成分

Oxygen is an essential element for human respiration.

元素是人类呼吸的重要组成部分。

离子, 带电粒子

Sodium ions (Na⁺) and chloride ions (Cl⁻) combine to form table salt.

钠离子（Na⁺）和氯离子（Cl⁻）结合形成食盐。

反应, 回答

Her immediate reaction to the news was one of disbelief.

她对消息的即时反应是不相信。

混合物

Air is a mixture of nitrogen, oxygen, and trace gases.

空气是氮气、氧气和微量气体的混合物。

酸, 酸性物质

The lemon juice contains citric acid, which gives it a sour taste and a pH of around 2.

柠檬汁含有柠檬酸，这使它具有酸味和大约2的pH值。

卑鄙的, 卑劣的

His base actions shocked everyone at the party.

他的卑鄙行为让派对上的每个人都震惊了。

气体

The gas in the balloon expanded as it was heated by the sun.

气球中的气体在被太阳加热时膨胀了。

液体的, 流动的

The liquid gold flowed smoothly into the mold, forming a beautiful statue.

液态黄金顺畅地流入模具，形成了一个美丽的雕像。

固体的, 坚固的

The ice had formed into a solid block after being left in the freezer overnight.

冰在冷冻室放了一夜后形成了一个固体块。

过渡, 转变

The transition from winter to spring is often unpredictable.

从冬天到春天的过渡往往是不可预测的。

pH值

Lemon juice has a pH of 2, making it highly acidic.

柠檬汁的pH值为2，使其呈高度酸性。